Engineering Expert Witness
G. Fred Liebkemann IV, P.E.
Mechanical Engineer & Expert Witness
G. Fred Liebkemann IV, P.E. is a mechanical engineer and an experienced designer and analyst of heavy machinery and structures.  Mr. Liebkemann’s services have been retained more than 150 times by attorneys in matters involving cranes, rigging, forklifts, oilfield drilling and production equipment, pile driving, scaffolding, personnel access equipment, shipboard systems and facilities, automotive and commercial truck equipment failure, amusement rides, and manual lifting.
(985) 781-2571
G. Fred Liebkemann IV, P.E.

Date of Birth  March 30th, 1963

102 Legendre Drive
Slidell, LA 70460
Phone (985) 781-2571
Fax (832) 201-5361


University of Miami, Coral Gables, FL
Bachelor of Science Degree, Mechanical Engineering, 1986

Louisiana State University
Completed 1.5 years post graduate study in Mechanical Engineering

Society of Automotive Engineers
Certificate of Mastery in Accident Reconstruction

Additional Courses

Applying Automotive EDR Data to Traffic Crash Reconstruction
Vehicle Crash Reconstruction: Principles & Technology
Vehicle Dynamics of Passenger Cars and Light Trucks
Commercial Vehicle Braking Systems
Fundamentals of Automotive All-Wheel Drive Systems
Tire and Wheel Safety Issues
ADA Standards for Accessible Design, 2010


Registered Professional Mechanical Engineer by the State Board of Registration of Louisiana, No. 25480

Membership in Professional Organizations

Member, National Society of Professional Engineers
Member, American Society of Mechanical Engineers
Member, American Society of Safety Professionals
Member, Society of Automotive Engineers
Member, American Petroleum Institute SC2 Offshore Structures Committee 
(Specification for Offshore Pedestal Mounted Cranes)
Member, American Petroleum Institute 2D-2 Committee
(Training Programs for Crane Operators, Riggers, and Crane Inspectors)

Occupational History

April 2000 - present:                            Professional Engineer in private practice

January 1999 - April 2000:                  Senior Design Engineer, SEAREX Inc.

March 1996 - January 1999:                President, Liebkemann & Montestruc Engineering Company

May 1994 - March 1996:                     Vice President, ELM Engineering Company

January 1989 - May 1994:                   Senior Engineer, M. E. Software Associates Inc.

Design Experience            The following are examples of the types of equipment designed.

Materials & Heavy Handling Equipment Designed

Offshore pedestal cranes                     Aframe cranes
Traveling boat lifts                                    Manned submersible retrieval systems
Stiffleg cranes                                             Drill pipe & riser handling systems
Pipe laying equipment                            Leapfrog crane systems
Heavy lift cranes                                        BOP cranes
Knuckle boom cranes                              Winches
Overhead traveling cranes                   Slings
Spreader bars                                             Davits
Blocks                                                             Jacks                                       
Ship launching systems                         Passive heave compensators

Oilfield Equipment & Structures Designed

Drill floors                                                      Quarters buildings
Drilling derrick conversions                 Pipe racks
V-door ramps                                                Mooring equipment
Mud processing equipment                  Helidecks        

Vessels and Marine Equipment Designed

Jackup vessels and legs                       Drilling barges
Offshore research vessels                 Main propulsion systems
Jacking systems                                       Steering systems
Piping systems                                         Paddlewheels
Pumping systems

Personnel Access Equipment Designed

Scaffolds                                                   Gangways
Stairs                                                           Portable & fixed ladders
Railings & toeboards                           Fixed personnel platforms
Safety nets                                               Personnel hoists
Ramps                                                         Motorized manlifts
Personnel baskets

Pressure Vessels Designed

Liquid storage tanks                             High pressure piping
Hydraulic cylinders    

Failure Analysis Experience

Determination of the location and mode of failure of products and structures through examination, materials testing and computation.  Examples of failure analyses conducted include:

Oil pipeline rupture                              Crane collapse
Marine propulsion failure                 Gearing system failure
Jackup vessel leg failure                    Wire rope failure
Shackle failure                                         Compressor failures – air, methane & heliox
Diesel engine failure                            Winch failure

Safety Engineering Experience

Design of safety devices including machinery guards, protective interlocks, capture devices, ventilation systems, fire protection and fire fighting systems, lifesaving equipment and alarms.

Incorporation of the provisions of local, state, and national safety standards into the design of equipment and structures and into the procedures for use of equipment and structures.

Inspection and testing of existing industrial facilities, equipment, and vessels for compliance with applicable safety standards and regulations.

Determination of conditions and circumstances responsible for equipment failures, damage, and industrial accidents, and corrective measures needed to prevent failure or accident reoccurrence.

Crane Operation Qualifications

Qualified in accordance with API RP 2D 7th ed. as
Hydraulic Crane Operator
Hydraulic Crane Inspector
Fiction Crane Inspector

Equipment Operation Qualifications

Forklift Operator
IPAF Registered Boom & Vertical Lift Operator

Clients served include firms in the following fields

The oil & gas drilling and production industries
The oilfield service & supply industries
The shipbuilding industry
The construction industry
The marine salvage industry
The insurance industry
The legal profession
Manufacturers of heavy handling equipment